DOUBLE TRACER GAS PROCESS FOR LOCATING CONDUIT LEAKS

摘要

A process for locating leaks in an underground protective conduit disposed about a carrier pipe, and comprising the insertion of a double tracer gas into the protective conduit for the purpose of detecting leaks in the protective conduit. The process comprises the use of a double tracer gas which includes about two and one-half (2-1/2) to ten (10) percent methane and about ninety (90) to ninety-seven and one-half (97-1/2) per cent argon.